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Difference between single and double square brackets in Bash

...nt of [ that prevents further arguments from being used. Ubuntu 16.04 actually has an executable for it at /usr/bin/[ provided by coreutils, but the bash built-in version takes precedence. Nothing is altered in the way that Bash parses the command. In particular, < is redirection, && a...
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Why use a prime number in hashCode?

...ly be determined by the least significant entry (the one not multiplied at all). Similar entries will collide. Not good for a hash function. 31 is a large enough prime that the number of buckets is unlikely to be divisible by it (and in fact, modern java HashMap implementations keep the number of b...
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Why use the 'ref' keyword when passing an object?

...ers. So how can we better distinguish the difference between a plain param vs a ref? – bonCodigo Mar 18 '15 at 10:20 2 ...
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Why should I use Hamcrest-Matcher and assertThat() instead of traditional assertXXX()-Methods

...ed) state four advantages : More readable and typeable: this syntax allows you to think in terms of subject, verb, object (assert "x is 3") rather than assertEquals, which uses verb, object, subject (assert "equals 3 x") Combinations: any matcher statement s can be negated (not(s)), combine...
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What's the best free C++ profiler for Windows? [closed]

... I tried working with it now, and didn't like it at all. I couldn't even understand how to get function's total time % (including the callees) which TrueTime could do fine 10 years ago. – Pavel Radzivilovsky Mar 13 '11 at 15:05 ...
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Are inline virtual functions really a non-sense?

... excerpt from the excellent C++ faq: "The only time an inline virtual call can be inlined is when the compiler knows the "exact class" of the object which is the target of the virtual function call. This can happen only when the compiler has an actual object rather than a pointer or ...
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What is console.log?

... Places you can view the console! Just to have them all in one answer. Firefox http://getfirebug.com/ (you can also now use Firefox's built in developer tools Ctrl+Shift+J (Tools > Web Developer > Error Console), but Firebug is much better; use Firebug) Safari and Ch...
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How to show method parameter tooltip in C#?

VS2010: 4 Answers 4 ...
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What does the Visual Studio “Any CPU” target mean?

...ser is the OP of the question, as in this case, as they'll get notified of all comments. – Mark Hurd Mar 6 '13 at 15:14 12 ...
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How can I get the current language in Django?

...t: Returns None if translations are temporarily deactivated (by deactivate_all() or when None is passed to override()). Before Django 1.8, get_language() always returned LANGUAGE_CODE when translations were deactivated. – Pieter Jan 3 '17 at 13:11 ...